Markwell^® MPL4M Stapler With High Rise Clincher is a heavy gauge, hardened steel industrial quality manual stapler with epoxy coating. Stapler is extremely lightweight - less than one pound! Designed for continuous heavy duty operation. Opens for tacking uses. Easy top staple loading. Markwell Stapler features high rise clincher for stapling over boltropes, rolled material and ridges. Accepts only Markwell P4 Series fine wire staples up to 3/8".